invertelement.cpp
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/* Webcamoid, webcam capture application.
* Copyright (C) 2016 Gonzalo Exequiel Pedone
*
* Webcamoid is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Webcamoid is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Webcamoid. If not, see <http://www.gnu.org/licenses/>.
*
* Web-Site: http://webcamoid.github.io/
*/
#include <qrgb.h>
#include <akfrac.h>
#include <akpacket.h>
#include <akvideocaps.h>
#include <akvideoconverter.h>
#include <akvideopacket.h>
#include "invertelement.h"
class InvertElementPrivate
{
public:
AkVideoConverter m_videoConverter {{AkVideoCaps::Format_argbpack, 0, 0, {}}};
};
InvertElement::InvertElement(): AkElement()
{
this->d = new InvertElementPrivate;
}
InvertElement::~InvertElement()
{
delete this->d;
}
AkPacket InvertElement::iVideoStream(const AkVideoPacket &packet)
{
this->d->m_videoConverter.begin();
auto src = this->d->m_videoConverter.convert(packet);
this->d->m_videoConverter.end();
if (!src)
return {};
AkVideoPacket dst(src.caps());
dst.copyMetadata(src);
for (int y = 0; y < src.caps().height(); y++) {
auto iLine = reinterpret_cast<const QRgb *>(src.constLine(0, y));
auto oLine = reinterpret_cast<QRgb *>(dst.line(0, y));
for (int x = 0; x < src.caps().width(); x++) {
auto &pixel = iLine[x];;
oLine[x] = qRgba(255 - qRed(pixel),
255 - qGreen(pixel),
255 - qBlue(pixel),
qAlpha(pixel));
}
}
if (dst)
emit this->oStream(dst);
return dst;
}
#include "moc_invertelement.cpp"